Evidence map›Paper›PMID 39385552›Full record

SynthesisMovement disorders clinical practice2024

Sex Differences in Neuropsychiatric Symptoms in Alpha-Synucleinopathies: A Systematic Review and Meta-Analysis.

Vincent Couture, Jean-François Carmel, Katerine Rousseau, Geneviève Létourneau, Doris Clerc, Philippe Huot, Marie-France Forget, Quoc Dinh Nguyen, Richard Camicioli, Philippe Desmarais

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Movement disorders clinical practice, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
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  5. Gender differences in non-motor symptoms in Parkinson's disease: a multicenter longitudinal study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Vincent CoutureDepartment of Psychiatry, Division of Geriatric Psychiatry, Institut Universitaire en Santé Mentale de Montréal, Montréal, QC, Canada.ORCID 0009-0009-4054-3820
Jean-François CarmelDivision of Geriatric Psychiatry, Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada.
Katerine RousseauDepartment of Psychiatry, Division of Geriatric Psychiatry, Institut Universitaire en Santé Mentale de Montréal, Montréal, QC, Canada.
Geneviève LétourneauDepartment of Psychiatry, Division of Geriatric Psychiatry, Institut Universitaire en Santé Mentale de Montréal, Montréal, QC, Canada.
Doris ClercDivision of Geriatric Psychiatry, Institut Universitaire de Gériatrie de Montréal, Montréal, QC, Canada.
Philippe HuotDepartment of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada.
Marie-France ForgetDepartment of Medicine, Division of Geriatrics, Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada.
Quoc Dinh NguyenDepartment of Medicine, Division of Geriatrics, Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada.
Richard CamicioliDepartment of Medicine and Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.ORCID 0000-0003-2977-8660
Philippe DesmaraisDepartment of Medicine, Division of Geriatrics, Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada.

Funding

Consortium canadien en neurodégénérescence associée au vieillissement
6 · The paper itself

Abstract

backgroundAlpha-synucleinopathies, such as Parkinson's disease (PD), Parkinson's disease dementia (PDD), and dementia with Lewy bodies (DLB), demonstrate sex differences with regard to prevalence, age of onset, and motor manifestations. Neuropsychiatric symptoms (NPS) are common early and late manifestations of these disorders.

objectivesWe aimed to describe sex differences in NPS across alpha-synucleinopathies.

methodsWe searched Web of Science Core collection databases to identify observational studies published between January 1, 2000, and June 1, 2022, reporting the prevalence or severity of NPS among individuals with a diagnosis of PD, PDD, or DLB. Prevalence and severity were pooled for each NPS according to sex using random-effects models.

resultsTwo-hundred-and-forty studies, representing 796,026 participants (45% females), were included in the meta-analysis. Female sex was associated with a higher prevalence of anxiety (OR = 1.60 [95% CI: 1.40, 1.82]), depression (OR = 1.56 [1.45, 1.67]), fatigue (OR = 1.21 [1.02, 1.43]), and psychotic symptoms (OR = 1.26 [1.14, 1.40]) and more severe anxiety (g = 1.35 [95% CI: 0.58, 2.13]), depression (g = 1.57 [1.05, 2.08]), and fatigue (g = 0.86 [0.41, 1.32]), while male sex was associated with a higher prevalence of apathy (OR = 0.77 [0.63, 0.93]), impulse control disorders (OR = 0.67 [0.55, 0.82]), REM sleep behavior disorder (OR = 0.54 [0.42, 0.70]), hypersomnolence (OR = 0.67 [0.56, 0.80]), and suicide (OR = 0.30 [0.20, 0.44]).

conclusionsNPS have different prevalences and severities in alpha-synucleinopathies according to sex. These findings support consideration of sex in the elaboration of clinical tools.

Indexed as

Parkinson DiseaseSynucleinopathiesAnxietyDepressionFemaleHumansLewy Body DiseaseMaleMental DisordersPrevalenceSex CharacteristicsSex Factorsalpha‐synucleinopathydementia with Lewy bodiesneuropsychiatric symptomsParkinson's diseasesex differences

Identifiers

PMID39385552
PMCPMC11542278

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.